Why is the pass higher than the gate?
The height of the pass sleeve is determined by the height of the reserved hole in the field civil engineering. Generally, the balcony is about 2.4m high and the room is about 2.1m.
Pass is generally the entrance of the aisle at home, but those with doors are generally called doorways, and those without doors are called passes, so the optimal size of pass should be designed according to the height and width of the aisle and the house. The most intuitive difference between a pass and a doorway is that there is a door but no door, so there are many different decoration styles.
Through sleeve is the general name of sleeve plate and sleeve lining without door. Sleeves with two sides are called double-faced sleeves, sleeves with one side are called single-faced sleeves, and sleeves used in window positions are called window sleeves.
Door covers are called door covers, and doors need to be installed in the future. There is a mouth strip on the door cover, which is slightly different from the pass cover. Moreover, after the door leaf is installed, a sealing strip is installed on the mouth strip near the door to slow down the sound made by the door leaf hitting the door cover, which is also called a mute strip.